Tobacco pipe



' June 5, 1928'. I

' L. T. HARRIS ToBAcconPa Filed April 11. 1924 Inventor:

thereof a Patented June 5, 1928.

PATENT LAURENCE T. HARRIS, or LAWRENCE, KANSAS; Y

TOBACCO PIPE.

application fil ed April 11, 1924. Serial No. 705,832.

The present invention relates generally to certain articles compr sed in the para phernalia in common use by tobacco .smok-' ers. More particularly, the invention relates to such of those articles as are commonly known as, tobacco ipes smoking tubes" and the like, and t e general purpose'and object of the invention is to provide articles of this character which will afford the users reater degree of pleasure, satisfaction and comfort than has hitherto been obtainable from such articles of conventional or known construction and characteristics. The invention is herein illustrated and described as being embodied in a tobacco pipej but it is obvious that the principle the spiritand certain salient features thereof may equally well be embodied in other articles of the class under consideration. "The more e specific objectsof the invention as well as the means and the mannerof their accomplishment will therefore be hereinafter enumerated and described 1n connection and with particular reference to the embodiment.

' to all plpe users.

selected for illustration.

An object of the invention is to provide a tobacco pipe in which the objectionable in.- he'rent characteristics of former pipe con structions are obviated by the use ,ofa lin: ing in the bowl bore.

A further object resides in the provision of such a lining composed of a vegetable matter treated in such a manner as to produce a substance havingsubstantially the same characterlstlcs as are found in the accumulation of charred tobacco in the bowl of a long used pipe.

A still further object resides 'in certain structural details whereby the lining is adapted to become in effect, an integral part of the bowl. 1

Another object of primary importance is the provision of a similar lining throughout the length of the passageway in that portion of the pipe stem which is adjacent to or integral with the bowl.

A further object .of the invention is to provide a tobacco supporting plate in the bottom of the bowl bore whereby the passageway leading from the'said bore will be maintained clear and unobstructed. M

Other objects and advantages of the invention will be apparent from the following detailed description and those above briefly mentioned will be more fully discussed in connection with the accompanying drawings wherein':' I I Fig. 1' is a'view inupartial longitudinalsection and partial side elevation of, a to-' bac'co pipe constructed in accordance with andembodying the features of my invention. i i I Fig. 2 is a top plan view of the construction illustrated in Figure 1. Figs. 3, and 4 are top-plan and longitudinal sectional views respectively of a detail, shownin Figures 1 and2. I g j fBefore'proceeding with the detailed d'e scription of the drawings, it is deemed advisable to set forth briefly the outstanding objectionable inherent and other characteristics of the known pipe constructions in order that the objects of the present invention may be recognized as being well directed and their means of attainment fully justified'by the end achieved. jThecharacteristic's re-f ferred to are severally related to and diantnesses experienced by and so well known. For purposes Iof'illustration, let us consider the action produced burning tobacco in a briar pipe bowl when new and incertai'n succeeding stages'of its use. The pipe, when new, presents either a raw wood" or finished'wood surface against which the fire in the bowl must-burn and, this initial burning mustnecessarily. consume some portion of the-wood or finish coating or both while consuming the tobacco.

This action gives rise to fumes and smokej; which are wholly foreign and disagreeably antagonistic to the natural tobacco smoke.

Thesmoke thus obtained from a new ipe is highly objectionable for this reason alone. Furthermore, this smoke carries with it an excessive amount of heat due to the fact that the hard wood surface of the bowl. bore .de-

fleets, rather than absorbs it. These two rectly responsible for the various unpleascharacteristics, viz, the excessively heated I smoke and the antagonistic fumes of the burning wood or wood finish, render the use of new pipes an ordeal rather than a pleasure, The continued use of a pipe gradual:

ly obviates these disagreeable qualities by.

reason of the. natural accumulation oftobacco ash on the wall of thebore, which in 7 prisingdegree as a heat absorbent. Thus, an

old, much used pipe affords a smoke which is entirely free from contamination by foreigili substances and which is comparatively Briefly stated, therefore, the primary object of the present invention is to provide a tobacco pipe which, when new, possesses all of the desirable characteristics of a long used pipe, together withcertain additional desirable characteristics not hitherto attained either by artificial processes or the I natural process by virtue of use.

This object is realized according to the present invention'and with reference to the exemplary embodiment shown in the drawings, by the provision of a composite lining in the bore of the pipe bowl and in the passageway formed in the stem portion which is integral with or secured adjacent to the bowl.

The invention is illustrated as being embodied in a pipe of conventional. design having a bowl 4 and an integrally formed stem portion 9 of briar or other suitable material. The stem 9 is provided with a passageway S communicating with the bore 1 of the bowl and is further provided with an enlarged bore llfor the reception of the shank 10 of the stem 12, the stem being madev of any suitable material and having the usual passageway 13 communicating with that of the stem portion 9. The shoulder 15 of the stem abuts the adjacent end of stem portion '9. The construction thus far described is that ofa conventional pipe and per se, forms no part of the p present, invention. The original bore of the pipe designated by the numeral 1 is shown asextendingfrom the top surface of the bowl to a point a short distance therebelow at which point thebore is offset or enlarged to form an undercut shoulder beneath the top surface of the pipe rim.

The remaining depth of the bore is con stituted bya series of corresponding offset or enlarged portions alternating with rib formations 2, the whole presentinga wall surface of alternating ribs 2 and grooves 14 which serve effectively to permanently anchor thelining 3 to the wall of the bowl.

It will be noted that the lining 3 is appreciably thicker in cross section than are the rib formations 2 and further, that the shoulder formed bythe uppermost groove or offset portion serves to positively prevent the outermost'portion of the lining from being chipped, cracked or dislodged by the periodic and oftentimes severe poundings to which the top surface of most all pipes is subjected. The lining, which willbe hereinafter more specifically discussed, is formed in such a manner as 'to present awall surface substantially flush or coinciding with that of the original bore 1 and at its bottom is tapered or rounded to converge at the outlet opening of the bore. A further highly important feature of the invention resides in theprovision of a comparatively thin wall lining 7 in the passageway 8, this latter lining being preferably, though not necessarily, formed. integral with the lining 3 and composed of the same or like substance. v v A further, though. more or less subsidiary,

feature of the invention is the provision of an element for effectively preventing the packing and clogging of tobacco and refuse in and about the outlet opening at-the bottom of the pipe bore. J This element isdesignated in the drawings by the numeral 5 and permanently in the composite lining adja-' cent the bottom of the bore, but is not limited to use in this manner, since it might obviously be used by merely inserting it in the bore of any conventional pipe. However, the herein described manner of use is unusually advantageous in that the lining forms a positive means for'anchoring the arched element in its proper position.

Having described in detail the various features of construction and the arrangev ment and disposition of the parts, it now remains to describe, the manner or process by which the article so characterized, is pro- This involves the formation of the alternate rib and groove surface in the bore,

duced.

the composition of th'elining, the manner of anchoring the plate 5 and the process by which the lining is formed in the bore and in the passageway of the stem. These features will be discussed in the order mentioned.

The bowl 4 is first provided with the usual bore which may eithcrbe of uniform diameter throughout or slightly tapered from the Opening downward. In either case the wall is formed to converge at the outlet opening. Beginning at a point'slightly below the upper surface of the bowl, the bore is then enlarged or bored out by means of an expansible cutting tool, thus forming theseries of grooves 14: and the intermediate ribs 2.

The properties ofthe pipe lining are vital to the full realization of the more important objects of the invention. A most desirable lining is obviously one which contains all or a substantial portion of the desirable propneae, by reducing the selected matter to a stance, which in the present instance is wheat, is mixed or combined with a suitable binder. To be suitable, the ingredients of the binder must be such as are consistent with the purpose in View and to this end, 1 preferably utilize a binder derived from a carbo-hydrate, similar to and preferably the same as that from which the body of the composition is derived. This gives a com position without antagonistic components and which contains 'allof the desirable properties above mentioned and none other. In the use of wheat and'si-milar rains, it has been found most satisfactory and expeditious toutilize the coats or outer shells thereof in forming the body of the composition and the hearts or centers for the binder.

Before applying the composition above described to the pipe, the stem 12 is removed. The pipe bowl is then filled with the composition while in a plastic state and a pressure element, conforming in length to the desired depth ofthe bowland of a diameter corresponding to that of the original bore 1, is inserted therein. This pressure element may be acted upon in any suitable manner, as for instance, by a small drill press. A

comparatively high pressure is preferably utilized in order to compress the composition and cause it to adhere to the wall formation of the pipe. operation is completed, the pressure element is withdrawn and the pipe in this condition is left undisturbed until the composition has become hardened and firmly set. Equally good and somewhat quicker results may be obtained by subjecting the pipe to heat immediately after the pressing operation, although this method is in no wise essential. It will be noted that at this stage, the passageway 8 of the stem 9 is completely filled with the composition. After the composition has become firmly set the passageway is drilled out to a smaller diameter than that of the original passageway, thereby leaving a uniformly thin lining 7 of the composition therein. If desired, the original passageway may be enlarged previous to the application of the composition in order that the ultimate passageway may be of the nor-.

mal size. The product of this process may be smoothed or re-touched in any well known manner to give it a finished appearance.

The tobacco supporting plate 5 is placed When the pressure in position at the bottom of the bore with its rounded ends embedded in the plastic composition directly following the pressure application. When the composition becomes hardened, the plate isfirmly and permanently anchored and in effect, forms an integra part of the finished product. 7

From the above disclosure it will readily be seen that the various features of the in-- vention have been carefully and consistently worked out and that thestated objects have been fully and most expeditiously'realized.

It should be apparent to those familiar with or skilled in matters to, which this invention pertains, that the present invention isfnotlimited in its use and application to the single specific embodiment illustrated in the drawings and described in theabove specification, but that the underlyin principles and certain of the material eatures thereof may be incorporated in other articles of the'class under consideration.

In addition 'to the mentioned advantages produced by'the realization of the above stated objects, the present invention makes possible the use of'ma'terials not hitherto practicable in the manufacture of smokers accessories. Thisnew possibility arises by virtue of the fact that, in the illustrated form of the invention, the composition is utilized as a lining throughout the entire pipe whereby neither the tobacco nor the smoke'therefrom may'come into contact with the material of which the pipe is formed. Furthermore,- this composition serves as an insulating and heat absorbing shell, maintaining the pipe body comparatively 0001. These features of the invention make practicable the use of substantially all varieties of woods, many of the well known composite substances as well as cast and pressed metals in the manufacture of pipe bodies and other articles of similar nature. The importance of this phase of the invention will be readily recognized in view of the fact that the manufacture of pipes has hitherto been limited to the use of a certain few of the extremely hard woods which are far from desirable from the standpoint of availability, economy and expeditious manufacturing.

In the foregoing specification 'I have endeavored to give such a full and clear disclosure of my invention as is required by the statutesand in so doing, have in some instances resorted to the use of specific terms, definitions, descriptions and illustrations.

This disclosure, though specific in part,

from, a lining pressed into said bore and bore, a lining for said bore conforming to the contour of said wall and being anchored thereto by the said rib and groove formation.

4. In anarticleof the class described having a tobacco receiving portion, a series of alternate rib and groove formations on the inner wall of said portion, a lining for said Wall conforming to the above characterized contour thereof, whereby the said parts are permanently secured against separation.

5. In an article of the class described having atobaccoreceiving bore, an inwardlyextending undercut shoulder adjacent the outer opening of said bore, whereby the bore is enlarged below the said. opening, a series of alternate rib and groove formations on the wall of said enlarged portion, a lining for said enlarged portion, said lining abutting the said undercut shoulder and being substantially flush with the wall of the normal bore, outwardly of the said shoulder.

6. In a tobacco pipe having a combustion chamber, a composite lining for the wall of saidchamber, the substance of said lining,

comprising, a carbohydrate with a hinder, the said binder being likewisederived from a carbo hydrate; i

7. 111 an article of the class described. having a tobacco receivingbore, a lining for the wall of said bore, the said lining compris ing a pulverized substance combinedwith a hinder, the said binder and substance being derived from the same matter, whereby the resultant composition is without antagonistic components. v

S. The process of forming a composite lining in the bore of'a tobacco pipe, COH'IPIlS? ing the application of a quantity of the conr,

position in a plastic state to the bore and thereafter applying pressure to the said composition,through.the mediuinof a suitably formed pressure element.

ll. The process of forming a composite linin the bore and communicating passageway of a tobacco pipe, comprising the ap plication of a quantity of llllG'QQIIlPOSliJIQIl in a plastiestate to the bore andthereafterapplying pressure to the said composition through the medium of a;suitablyi-formed pressure element, whereby the quantity of composition in excess of that required for the bore lining is forced out of the said bore and into the v communicating passageway,

completely filling the same, the said passageway being thereafter drilled out to the desired diameter after the composition has hardened.

LAURENCE 'r. HARRIS. 

